Slow magnetic regulating device for noninductive loads



Oct. 4, 1938. A. B. RYPINSKI 2,131,753

SLOW MAGNETIC REGULATING DEVICE FOR NONINDUCTIVE LOADS Original Filed Dec. 2'7, 1929 1I E-l IIEi-E IN VEN TOR.

A TTORNEY Patented Oct. 4, 1938 SLOW MAGNETIC REGULATING DEVICE FOR NONINDUCTIVE LOADS Albert B. Rypinski, Laurelton, Long Island, N. Y.

Original application December 27, 1929, Serial Patent No. 2,082,121, dated June Divided and this application February 28, 1936, Serial No. 66,277

4 Claims.

My invention relates broadly to solenoids, electromagnets, impeders, transformers or other electromagnetic regulating devices, wherein the magnetic characteristics and related electric and mechanical characteristics may vary over a time cycle.

This is a division of application Serial No. 416,877, for Slow magnetic regulating devices, filed December 27, 1929, now Patent No. 2,082,121,

granted June 1, 1937.

My Patent No. 1,972,319, granted September 2, 1934 for Coil for slow electromagnets and reactors, based on application Serial No. 671,768, filed v May 18, 1933, describes coils for electromagnetic devices such as are illustrated herein. It is directthey are not claimed herein.

My Patent No. 1,972,112, granted September 4, 1934, for Slow reactor or circuit controller, based on application Serial No. 608,095, filed April 28, 1932, is a continuation-in-part of my copending application Serial No. 416,877, filed December 27,

1929 for Slow magnetic regulating devices, now Patent 2,082,121, dated June 1, 1937, of which this application is a division. Patent 1,972,112v is directed to slow electromagnetic devices constituted by materials having the same or similar temperature coefiicients of resistance, as clearly defined therein. This application is directed to devices having substantially different temperature coefiicients of resistance.

115 One of the objects of my invention is to provide a circuit arrangement for an electromagnet, reactor or transformer, by which the electromagnetic properties of an electromagnet reactor or transformer may be controlled in accordance 40 with a given time period.

Another object of my invention is to provide a construction of electromagnet, reactor or transformer in which the rise and fall of the magnetic characteristics thereof may be made to conform 4:7 with a predetermined time period.

A further object of my invention is to provide a construction of electromagnet, reactor or transformer and circuit arrangement therefor, wherein a multiple winding is connected in the control 50 circuit for difierential operation in controlling the magnetic properties of the electromagnet, reactor or transformer in accordance with a predetermined time cycle. I

A still further object of my invention is to pro- 55 vide a plural winding electromagnetic system in which the magnetic effect is controlled by a differential change in resistance in the electromagnetic windings in accordance with a predetermined time cycle.

Still another object of my invention is to provide an electromagnetic system constituted by a multiplicity of windings each having different temperature coeflicients of resistance for differentially acting upon said electromagnetic system and predetermining the magnetic properties thereof over a definite time cycle.

A further object of my invention is to provide means for controlling a non-inductive load by means of a slow magnetic regulating device.

Other and further objects of my invention reside in the arrangement of a regulating device for non-inductive loads as set forth more fully in the specification hereinafter following by reference to the accompanying drawing, in which:

Figure 1 shows an electromagnetic device of my invention in series with a non-inductive load connected to a supply line; Fig. 2 illustrates the electrical connections of an electromagnetic device of my invention connected in series with a non-inductive load and a supply source; Fig. 3 illustrates the connection of a modified form of electromagnetic device of my invention wherein the variable resistance elements take the form of resistors in series with the inductively coupled windings, each winding and its series resistor being connected in parallel with the other winding and its series resistor, and the complete device in series with a non-inductive load and a supply source; Figs. 4 and 5 illustrate modified forms of slow transformers having non-inductive loads connected with their secondary windings in accordance with my invention; and Fig. 6 illustrates the connection of a control device, according to my invention, electrically in series with a noninductive load.

Referring to the drawing in detail, Figure l diagrammatically shows the application of my invention to motor starters in which the supply lines L carry current to the motor I through the slow electromagnet constituted by windings 2 and 3 wound on spool member 4 and operating upon armature 5. The motor starts after a predetermined time period depending upon the characteristics of the slow electromagnet and receives the full line voltage gradually as the motor acquires full speed.

Fig. 2 shows the electrical connection of an electromagnetic device embodying my invention constituted by the inductively coupled and opposed windings connected in parallel and arranged in relation to a core 6. The inductively coupled and opposed windings 2 and 3 are disposed in series with a non-inductive load indicated at l. A power supply source is connected to the circuits at leads 8.

Fig. 3 shows the connection of a modified form of electromagnetic device in which windings Q and 10 are inductively coupled and arranged with respect to a core I l, and the windings each connected in series with the resistors l2 and I4, respectively. Each winding and its associated series resistor is connected in parallel with the other winding, and in series with the non-inductive load indicated at l and connected to the leads indicated at It.

Fig. 1 shows the slow electromagnet of my invention applied to a transformer having a pri-- mary system It constituted by the parallel disposed slow electromagnetic inductively coupled windings I? and 18. A resistor I8 is connected in series with the windings I? and with the line L. The secondary winding 29 is magnetically coupled with the slow primary system. A magnetic core is provided as indicated at 2|. The secondary winding '20 is connected to the non-inductive load indicated at 22.

Fig. 5 shows the manner of applying my invention to the primary system of a transformer provided with parallel connected windings i3 and 24 which are magnetically coupled but which have different coefficient materials in the windings 23 and 24. That is to say, the windings 23 and 24 constituting the primary system of the slow transformer illustrated in Fig. 5 are to med from different coefiicient materials. A magnetic core 25 is provided for the transformer. A secondary winding 28 is magnetically coupled with the primary windings 23 and 24. The secondary winding 26 connects with the non inductive load. shown at 21.

Fig. 6 illustrates a device of my invention connected as a control means in series with a noninductive load. The non-inductive load is represented as a bank of lamps 28 connected in parallel. The voltage and current supplied to the non-inductive load 28 from the line circuit L is controlled according to the characteristics of the slow electromagnet having movable core structure 5 constituted by windings 2 and 3 constructed in a manner similar to the arrangement illustrated in Fig. 1. The windings 2 and 3 are magnetically coupled in opposition one to the other and connected in parallel and disposed in series with the load circuit. The resistance of one of the windings varies more than the resistance of the other, with temperature changes, to alter the ratio of the currents in the parallel paths and vary the resultant magnetism in the impedance device for changing its inductive reactance and thereby controlling the current passing to the load.

It is to be understood that the non-inductive loads illustrated, while shown as separated from the electromagnetic control devices in the drawing, are so shown only for clearness, and may be arranged in any suitable way, either separated from or joined to the latter device. The load device may carry the control device within its structure or vice versa.

caused to change disproportionately with changes in temperature of either the windings themselves or of resistors in series with one or both windings within the parallel connection.

As the resistances of the paths change, the current split in these paths is altered, producing changes in the net magnetism produced, and in all the effects dependent on magnetism and resistance changes.

Several such eifects are: To move a core; to alter the current, voltage, power factor, inductive reactance or impedance of the circuit in which the device is connected, and to affect the sound produced by the electromagnetic device. These effects may increase or decrease with time, or have combinations of increases and decreases over time periods. This is determined by the relative strengths of the opposed windings over the time cycle.

My invention is particularly directed to an electromagnetic device such as an impeder or transformer in series with a non-inductive load, where the changes in magnetism or other eli'ccts in the device control the current flowing to the load over a time cycle.

My invention may be utilized in many ways, as explained in the parent case, Serial Number 416,877, such as in impeders or transformers in power systems with or without iron cores or movable armatures.

While I have described my invention in certain preferred embodiments, I desire that it be understood that modifications may be made and that no limitations are intended other than are imposed by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. In an impedance device for controlling the current from a supply circuit to a non-inductive load, a pair of windings magnetically coupled in opposition one to the other and constituted by materials having substantially different temperture coeflicients of resistance, connected in parallel and disposed in series with said load circuit, the resistance of one of said windings varying more than the resistance of the other with temperature changes to alter the ratio of the currents in the parallel paths and vary the resultant magnetism in the impedance device for changing its inductive reactance and thereby controlling the current passing to the load.

2. In an impedance device for controlling the current from a supply circuit to a non-inductive load, a pair of windings magnetically coupled in opposition one to the other and constituted by materials having substantially diiferent temperature coefficients of resistance, connected in parallel and disposed in series with said load circuit, the resistance of one of said windings varying more than the resistance of the other with temperature changes to alter the ratio of the currents in said windings and vary the resultant magnetism in the impedance device for changing its inductive reactance and, thereby controlling the current passing to the load.

3. In an impedance device for controlling the current from a supply circuit to a non-inductive load, a pair of windings magnetically coupled in opposition one to the other and constituted by materials having substantially different temperature coeflicients of resistance, connected in parallel and disposed in series with said load circuit, a resistor is series with at least one of said windings within the parallel connection, the resistance of one of the parallel paths constituted by said windings varying more than the resistance of the other with temperature changes to alter the ratio of the currents in the parallel paths and vary the resultant magnetism in the impedance device for changing its inductive reactance and thereby controlling the current passing to the load.

4. In a slow magnetic regulating device for controlling the current from a supply circuit to a non-inductive load, a pair of windings magnetically coupled in opposition one to the other and constituted by materials having substantially different temperature coeflicients of resistance, connected in parallel and disposed in circuit with said load, the resistance of one of said windings varying more than the resistance of the other with temperature changes to alter the ratio of the currents in the parallel paths and vary the resultant magnetism in the impedance device for changing its inductive reactance and thereby controlling the current passing to the load.

ALBERT B. RYPINSKI. 

